Guard for rotary machine elements.



0. 0. STORLE.

GUARD ma RQTARY MACHINE ELEMENTS. APPLICATION FILED FEB. 27| |914- LZBG, 1 l 92.. Patented Aug. 7', 1917.

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peripheral wall with an internal recess 7L to clear the protruding head of the set bolt and permit it to rotate with the hub freely when the cap or shield is arrested. The cap f or shield may be axially and rotatably connected with the shaft and confined in place over the hub by a shouldered pin or screw e threaded or otherwise removably held in an axial socket or hole in the end of the shaft b. The head of the pin or screw e" is preferably countersunk in the cap so as not to project therefrom.

lVhere the end of a rotating shaft lprojects more or less from an adjacent bearing, as shown in Fig. l, in which Z designates the bearing, 'the cap or shield (Z may be fitted over and inclose or cover the exposed end of the shaft b, to which it may be rotatably and axially secured by a pin or screw e, or by an external annular groove formed in the shaft, and an inward projection such as a pin or screw, substantially as shown in Fig. 2, for engagement with the groove.

The operation or effect of the several forms of the guard shown by the drawing, is substantially the same.

Various modifications in the details of construction of the cap or shield and in the means of rotatably and axially securing it in place on a hub, shaft or like rotating part, may be made without departing from the principle and scope of the invention as defined in the following claims.

I claim:

l. A guard for a rotary machine elenient consisting of a cap having a central internal bearing and adapted to loosely fit over the exposed end of said element and to be loosely confined thereon so that said element may freely rotate therein when the cap is arrested.

2. A guard for a rotary element having a lateral projection, consisting of a cap adapted to be axially and rotatably confined on said element over said projection and recessed to permit the projection to rotate therein when the cap is arrested.

3. -A Quard for the exposed end of a rotary element consisting of a cap loosely fitting over the same and having a central internal bearing surrounded by an annularl recess; and an axial pivot connection for confining the cap in place on said element and permitting the cap to be arrested and the element to rotate freely therein.

In witness whereof I hereto affix my signature in presence of two Witnesses.

OLE O. STORLE.

Witnesses:

(l1-ras. L. Goss, FRANK E. DENNETT.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

